thought i would chime in with extensive experience with T2 and RF. first of all, the failure rate of the T2s have been about 50%, at least here in No. California. We always use High Gain Antenna T'd with the original antenna. About 50% of the time, we use a Channel Plus DA1000 (variable gain adjustment). rti seems to always want to replace the IRF6. (They seem to have a lot more of those in stock). However, we have had no problems with the IRF6, just the T2. And, also, be forewarned, a drop of the T2 can jar the RF antenna loose. And we found that's usually the explanation for spotty RF transmission when the IR works fine. If the IRF6 could hold macros in memory and the RF antenna was easier to get to, I believe, RTI may continue its niche-success as the the sub-Crestron, AMX solution. But, all the wasted troubleshooting time we've spent with this product gives us second thoughts about using them in the future.